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slega [8]
3 years ago
8

In ΔBCD, \text{m}\angle B = (5x+14)^{\circ}m∠B=(5x+14)

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0

Answer:

x = 16

Step-by-step explanation:

m<B+m<C+m<D = 180°

5x + 14 + x + 19 + 2x + 19 = 180

8x + 52 = 180

8x = 180 - 52

x = 128/8

x = 16

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